11. Valve-regulated lead acid batteries cannot spill their electrolyte. 12. Common lead acid batteries contain a mixture of acid and water, as well as lead plates. 13. A lead acid batteries are most commonly used for their low cost and tolerance for abuse. 14. Electricity is produced by a 12 volt flywheel magneto with a 12v-2.5 Ah lead acid battery . 15. For comparison, an automobile uses a single lead acid battery as part of the ignition system. 16. Powered by conventional lead acid batteries , the vehicle can travel up to 120km on a single charge. 17. There is an auxiliary, 12volt conventional lead acid battery under the bonnet / hood for the accessories. 18. The 1.3 L engine generated, which was fed to a bank of 24?2V sealed lead acid batteries . 19. Opening a lead acid battery is dangerous. 20. The new battery technology offered equivalent capacity to lead acid batteries but weighed several hundred pounds less.